EposSDK-SaleRequest-EftCard.java

import com.jakewharton.rxrelay2.BehaviorRelay;
import com.jakewharton.rxrelay2.Relay;

import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.List;

import de.wirecard.epos.model.sale.builder.PurchaseRequest;
import de.wirecard.epos.model.sale.builder.payment.EftCardPurchasePayment;
import de.wirecard.epos.model.sale.sales.SaleItem;
import de.wirecard.epos.model.sale.sales.SaleItemType;
import de.wirecard.epos.model.with.With;
import de.wirecard.epos.model.with.WithBase;
import de.wirecard.epos.util.events.Event;
import de.wirecard.epos.util.events.TerminalEvent;
import de.wirecard.epos.util.events.acceptance.AppSignatureConfirmationEvent;
import de.wirecard.whitelabel.BaseTest;
import io.reactivex.android.schedulers.AndroidSchedulers;
import io.reactivex.schedulers.Schedulers;

// discover active terminals before payment
// check terminal discovery section
epos.terminal().discoverDevices(); // ...

Relay<Event> eventRelay = BehaviorRelay.create();
WithBase withBase = With.base().scheduler(Schedulers.newThread());

// create list of sale items
List<SaleItem> items = new ArrayList<>(1);
items.add(new SaleItem(SaleItemType.PURCHASE, "item 1", new BigDecimal("10"), null, new BigDecimal("1"), new BigDecimal("20"), new BigDecimal("10"), null, null, null, null));

EftCardPurchasePayment payment = new EftCardPurchasePayment(
        new BigDecimal("10"), // payment amount
        null // notify callback url
);

PurchaseRequest purchaseRequest = new PurchaseRequest(
        new BigDecimal("10"), // amount of whole Sale, mandatory field
        "EUR", // currency code, mandatory field
        "note", // optional
        "shopId",// optional
        "externalId",// optional
        "customerId",// optional
        "mail@email.com",// optional
        "cashRegisterId",// optional
        payment,
        items, // optional
        true, // unitPricesIncludeTax, optional
        null // location, optional
);

epos.sales()
        .operation()
        .purchase(purchaseRequest)
        //.purchase(purchaseRequest, withBase) // in case you want request to run on specific thread
        .subscribeParallel(eventRelay)
        .observeOn(AndroidSchedulers.mainThread())
        .subscribe(saleId -> {
            // sale was performed successfully
            // saleId String is returned, you can load whole sale object by calling epos.sales().getSale(String saleId)
        }, throwable -> {
            // handle error
        });

eventRelay
        .observeOn(AndroidSchedulers.mainThread())
        .subscribe(event -> {
            if (event instanceof TerminalEvent.SignatureRequest) {
                String img = "image in Base64 format";
                ((TerminalEvent.SignatureRequest) event).signatureEntered(img.getBytes()); // image in base 64
                ((TerminalEvent.SignatureRequest) event).signatureCanceled();              // sale canceled, because signature was not collected
            }
            else if (event instanceof TerminalEvent.SignatureConfirmation) {
                ((TerminalEvent.SignatureConfirmation) event).getEnteredSignature();      // signature confirmation can be performed in terminal or in app
                if (event instanceof AppSignatureConfirmationEvent) {                     // this event indicates it has to be confirmed in app side
                    ((AppSignatureConfirmationEvent) event).signatureConfirmed();         // signature confirmed in app
                    ((AppSignatureConfirmationEvent) event).signatureCanceled();          // signature confirmation canceled in app
                }
            }
            else if (event instanceof TerminalEvent.PaymentInfo) {                   // provided some information during payment which can be shown to user
                ((TerminalEvent.PaymentInfo) event).getAppLabel();
                ((TerminalEvent.PaymentInfo) event).getApplicationId();
                ((TerminalEvent.PaymentInfo) event).getCardholderName();
                ((TerminalEvent.PaymentInfo) event).getPanTag();
            }  
            else if (event instanceof Event.Update) {                                     // update events indicates change of progress
                String update = ((Event.Update) event).getMessage(context);
            }
            else if (event instanceof BaseTerminalUiEvent) {
                ((BaseTerminalUiEvent)event).getTitle(context);                           //  update events indicates change of progress when you are using Android based terminal
            }
        });